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Optimal Taxation and Social Insurance with Endogenous Private Insurance

机译:内生私人保险的最优税收和社会保险

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摘要

We characterize welfare gains from government intervention when the private sector provides partial insurance. We analyze models in which adverse selection, pre-existing information, or imperfect optimization create a role for government intervention. We derive formulas that map existing empirical estimates into quantitative predictions for optimal policy. When private insurance generates moral hazard, standard formulas for optimal government insurance must be modified to account for fiscal externalities. In contrast, standard formulas are unaffected by "informal" private insurance that does not generate moral hazard. Applications to health and unemployment show that formal private market insurance can significantly reduce optimal government benefit rates.
机译:我们将私营部门提供部分保险时政府干预带来的福利收益刻画为特征。我们分析了逆向选择,预先存在的信息或不完善的优化在政府干预中发挥作用的模型。我们得出将现有经验估计映射为最优政策的定量预测的公式。当私人保险产生道德风险时,必须修改最佳政府保险的标准公式,以解决财政外部性问题。相反,标准公式不受不会产生道德风险的“非正式”私人保险的影响。在健康和失业方面的应用表明,正规的私人市场保险可以大大降低最优政府福利率。

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  • 来源
    《American economic journal》 |2010年第2期|P.85-116|共32页
  • 作者

    Raj Chetty; Emmanuel Saez;

  • 作者单位

    Department of Economics, Harvard University, Littauer Center, 1805 Cambridge Street, Cambridge, MA 02138 and National Bureau of Economic Research (NBER);

    rnDepartment of Economics, University of California, Berkeley, 549 Evans Hall #3880, Berkeley, CA 94709 and NBER;

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